27 August 2023 to 8 September 2023
SRS
Europe/Zurich timezone

Kantaro Ohmori: Non-supersymmetric heterotic branes, bordisms, 2d SCFTs

1 Sept 2023, 09:00
1h
SRS

SRS

Hotel Les Sources Chemin du Vernex 9 1865 Les Diablerets Switzerland

Description

The no-bordism conjecture by McNamara and Vafa states that the bordism group with tangential structure and branes (singularity types) for a consistent quantum gravity should vanish.
This predicted previously unknown non-supersymmetric branes in string theory which should cancel the apparently nontrivial bordism classes.
In this talk I will propose the worldsheet theories of a string in the throat region of some of the predicted new branes in heterotic string theory.
I will also describe the relation to Stolz-Teichner conjecture as a connection to Yamashita’s talk.

The no-bordism conjecture by McNamara and Vafa states that the bordism group with tangential structure and branes (singularity types), for consistent quantum gravity, should vanish. As a corollary of the conjecture they predicted previously unknown non-supersymmetric branes in string theory, which are required to cancel the apparently nontrivial bordism classes. In this presentation, I will propose the worldsheet theories of a string in the throat region of some of the predicted branes in heterotic string theory.
Additionally, I will mention the relationship to the Stolz-Teichner conjecture and connect it to Yamashita’s talk.

Presentation materials

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